Home / 107,870.13-161,678.11-48,636.45

Finding the Fourth Proportional to 107,870.13, 161,678.11 and 48,636.45

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Solution

The fourth proportional to 107,870.13, 161,678.11 and 48,636.45 is: 72,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,870.13 : 161,678.11 = 48,636.45 : x
  2. Step 2: Convert to fraction form
    107,870.13/161,678.11 = 48,636.45/x
  3. Step 3: Cross multiply
    107,870.13x = 161,678.11 × 48,636.45
  4. Step 4: Simplify right side
    107,870.13x = 7,863,449,313.11
  5. Step 5: Solve for x
    x = 7,863,449,313.11/107,870.13
  6. Step 6: Final answer
    x = 72,897.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.